Extruder mixing screw



Oct. 31, 1961 L. AXT N 3,006,029

RONALD LUTHER SAXTO- TTRNEY UNITED STATES PAT NT OFFICE CERTIFICATE 0FCORRECTION Ronald Lu the r Saxton S hereby cerfied hat error appears inbhe above numbered patn'equirng correction and ha he said leers Paentshou1d read as 'co''eced be1ow.

Si ned and sealed this 3rd day ofA 'i`l 1962 S EA L) Attest:

ERNEST W. SWIDER DAVID I. LADD Attesting 0fficer con!nissioner ofPatents

